1. Do Now 9/10/12 Copy HW in your planner.
Text p. 9 & 10, #8-32 evens, #43-45 all
In your journal section, simplify the following expression. Explain your thought process.
3 + 7 x 3

2. Evaluate the Expression
3 + 7 = 10
10 x 3 = 30
7 x 3 = 21
3 +21 = 24

3. Objective
SWBAT use the order of operations to simplify numerical expressions.

4. Section 1.1, Order of Operations
Numerical expression
consists of numbers and operations
9 + 8
4 - 9
5 ÷ 2
6(10)

5. Order of Operations –
the rules established to simplify an expression involving more than one operation
10 ÷ 2 · 6
(4 + 7 · 6)²

6. 1 2 3 4 PEMDAS Order of Operations
Perform operations within grouping signs.
( ) parentheses, [ ] brackets, fraction bars 2
Evaluate powers. 3
Multiply and divide in order from left to right. 4
Add and subtract in order from left to right.

7. Simplify the Expression
PEMDAS
· 4
18 - 8 10

8. Simplify the Expression
PEMDAS
18 ÷ 2 · 4
9 · 4 36

9. 3 POWER 4 the result of repeated multiplication of the same factor
Remember this??? 4
Repeated Multiplication (Factors) 3
EXPONENT
Words
three to the
fourth power
BASE

10. Simplify the Expression
PEMDAS
2 + 7 · 3
4 + 7 · 3
4 + 21 25

11. Simplify the Expression
PEMDAS
14 + 6
Grouping symbol
12 – 7
(14 + 6) ÷ (12 – 7)
20 ÷ 5 4

12. Simplify the Expression
[2 x (4 + 4)] + 3
[2 x 8] + 3
16 + 3
PEMDAS 43

13. Simplify the Expression
[(4 +12 ÷ 4) – 2]
[(4 + 3) – 2]
[7 – 2] 5
PEMDAS
125

14. PEMDAS What Did We Learn Today? Numerical expression
Order of Operations
POWER
PEMDAS
BASE
EXPONENT

15. Scavenger Hunt
Homework
Text p. 9 & 10, #8-32 evens, #43-45 all